The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 11, 1980
Filed:
Jun. 28, 1978
Werner Weber, Emmenbrucke, CH;
Hubert Rustler, Lucerne, CH;
Viscosuisse S.A., Emmenbrucke, CH;
Abstract
A process and apparatus are provided for pyrolysis cleaning of residues from equipment used in the treatment and processing of synthetic materials, particularly synthetic plastics. The process comprises a first stage in which the equipment to be cleaned is heated in a closed chamber in the absence of air at a temperature above the melting point of the synthetic material from which the residue is left, and a second stage in which the equipment is heated at a higher temperature in the presence of air. The apparatus preferably comprises a slightly inclined, substantially horizontal heating chamber including a drain at the lower end for collecting melted residue, a vent for gases distilled from the residue with means for burning such gases, and an air inlet for introducing air to the chamber during the second stage.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile